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Finding the Fourth Proportional to 46,854.88, 64,653.36 and 27,988

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Solution

The fourth proportional to 46,854.88, 64,653.36 and 27,988 is: 38,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,854.88 : 64,653.36 = 27,988 : x
  2. Step 2: Convert to fraction form
    46,854.88/64,653.36 = 27,988/x
  3. Step 3: Cross multiply
    46,854.88x = 64,653.36 × 27,988
  4. Step 4: Simplify right side
    46,854.88x = 1,809,518,239.68
  5. Step 5: Solve for x
    x = 1,809,518,239.68/46,854.88
  6. Step 6: Final answer
    x = 38,619.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.